import axios from 'axios'
import { Message, MessageBox } from 'element-ui'
import store from '@/store'
import { getToken } from '@/utils/auth'

// create an axios instance
const service = axios.create({
  baseURL: process.env.VUE_APP_BASE_API, // url = base url + request url
  // withCredentials: true, // send cookies when cross-domain requests
  timeout: 30000 // request timeout
})

// request interceptor
// request interceptor
service.interceptors.request.use(
  config => {
    // do something before request is sent
    if (config.method === 'upload') {
      config.timeout = 120000
      config.headers['Content-Type'] = 'multipart/form-data'
      config.method = 'post'
    } else if (config.method === 'download') {
      config.method = 'post'
      config.responseType = 'blob'
    } else {
      config.timeout = 80000
      config.headers['Content-Type'] = 'application/json;charset=utf-8'
    }
    if (store.getters.token) {
      // let each request carry token
      // ['seeTools-Token'] is a custom headers key
      // please modify it according to the actual situation
      config.headers['seeTools-Token'] = getToken()
    }
    return config
  },
  error => {
    // do something with request error
    console.log(error) // for debug
    return Promise.reject(error)
  }
)

// response interceptor
service.interceptors.response.use(
  /**
   * If you want to get http information such as headers or status
   * Please return  response => response
   */

  /**
   * Determine the request status by custom code
   * Here is just an example
   * You can also judge the status by HTTP Status Code
   */
  response => {
    const res = response.data
    // if the custom code is not 200, it is judged as an error.
    if (!res.code) {
      // 不是json格式数据的直接返回，比如下载文件的
      return res
    }
    if (res.code !== 200) {
      // 401: 尚未登陆或登陆超时;
      if (res.code === 401) {
        // to re-login
        MessageBox.confirm('您尚未登陆或登陆超时', '确认退出并重新登陆', {
          confirmButtonText: '重新登陆',
          cancelButtonText: '取消',
          type: 'warning'
        }).then(() => {
          store.dispatch('user/resetToken').then(() => {
            location.reload()
          })
        })
      } else if (res.code === 403) {
        // TODO 没权限
      } else {
        Message({
          message: res.msg || 'Error',
          type: 'error',
          duration: 5 * 1000
        })
      }
      return Promise.reject(new Error(res.msg || 'Error'))
    } else {
      return res
    }
  },
  error => {
    console.log('err' + error) // for debug
    Message({
      message: error.message || error.msg,
      type: 'error',
      duration: 5 * 1000
    })
    console.log(error)
    return Promise.reject(error)
  }
)

export default service
